Cultivator.



No. 818,923. PATENTED APR. 24, 1906. DE WITT W. STRIGKLAND.

OULTIVATOR.

APPLICATION FILED MAY19.1905.

III

1X t neon My UNITED PAIENT OFFICE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed May 19. 1905. Serial No. 261,244.

To (ZZZ zuhorn it Hwy concern.-

Be it known that I, DE W'ITT WV. STRI0K- LAND, a citizen of the UnitedStates, residing at Magnolia, in the county of Pike and State ofMississippi, have invented certain new and useful Improvements inCultivators, of which the following is a specification.

This invention provides an implement for tilling the soil which whileprimarily designed for use as a cultivator may be advantageouslyemployed in the capacity of a harrow for pulverizing and leveling theground preparatory to planting.

The invention contemplates a beam of novel formation, peculiarconnections between the toothed bar and the beam, and an improvedgeneral structure whereby lightness of structure, combined withstrength, durability, efficiency, and ease of manipulation of theimplement, are attained.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand accompanying drawings.

While the invention maybe adapted to different forms and conditions bychanges in the structure and minor details without departing from thespirit or essential features thereof, still the preferred embodiment isshown in the accompanying drawings, in which- Figure 1 is a perspectiveView of a cultivator embodying the invention. Fig. 2 is a top plan viewthereof. Fig. 3 is a vertical longitudinal section on the line .2 2 ofFig. 2. Fig. 4 is a transverse section of the toothed bar on the line 3y of Fig. 1, showing the parts on a larger scale. Fig. 5 is aperspective view of the toothed bar having the teeth omitted. Fig. 6 isa transverse section of the beam on the line a: a; of Fig. 2 inconnection with the adjacent portion of the toothed bar, the parts beingshown on a larger scale.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The beam is straight and comprises similar members 1, having an offset 2near their front ends to bring the parts 3 close together,so as toreceive the clevis fastening, tooth, or other desired part. The beam ispreferably constructed of a metal bar bent upon itself into the formsubstantially as shown, the end portions of the bar being welded orotherwise joined to form, in effect, an integralstructure. A beamconstructed in this manner is comparatively light and capable ofresisting considerable wear and strain and may be easily handled.

The clevis 4 may be of any usual construc tion and is attached to thefront end of the beam by means of a bolt or other fastening 5, thelatter passing through rearwardly-extended lugs of the clevis andthrough the space formed at the front end of the beam at the fold of thebar. The handle-bars 6 are bolted or otherwise fastened at their lowerends to the side bars of the beam and are supported by means of abrace-frame 7 of approximately triangular form, said frame being formedof a bar made fast to the handlebars and having its end portions bentdownwardly and inwardly and attached to the rear portion of the beam bymeans of a fas tening S.

The toothed bar 9 comprises companion members disposed in parallelrelation and spaced apart a predetermined distance and connected attheir ends. A series of notches 10 are formed in the front edges of themembers to form seats in which the shanks 11 of the cultivatol shovels12 are fitted. The notches in the front edge of the upper membercorrespond in position and number with the notches in the front edge ofthe lower member. Hence corresponding notches are in vertical alinement.The bar 9 is attached to the beam about at a central point by means of abolt or like fastening 13 passed through vertically-alincd openings inthe members of the bar and through a clamp-plate 14, spanning themembers 1 of the beam and having grooves in its end portions to receivethe upper edge of the members 1. A sleeve 15, mounted upon the bolt 13,is arranged between the members of the bar 9 to hold them apart andinsure secure clamping of the bar and beam when the bolt or likefastening 13 is tightened. A brace 16 connects one end of the toothedbar 9 with a side of the beam, and a companion brace 17 connects theopposite end of the bar 9 with the other side of the beam. The braces 16and 17 supplement the action of the fastening 13 in securing the toothedbar to the beam. The toothed bar 9 may be arranged in any angularposition with reference to the beam, and, as. shown, it has an obliquedisposition, this being the most general position. The shovels 12 orlike earth-treating devices are pro vided with round shanks 11, whichare fitted into the half-round notches or seats 10 of the toothed bar,the rounded form of the shanks and their seats admitting of readilyturning the shovels'to any desired angular position, according to thenature of the work or the peculiarities of the soil. The shovels orteeth may be adjusted to any position in the length of the toothed bar,and any number may be provided to insure pulverizing the soil orcultivating the same to any desired extent. The

teeth or shovels are secured in position by suitable fastenings, whichmay consist of hooks or eyebolts 18 and clamp-plates 19, the latterspanning the members of the bar 9 and notched or grooved near their endsto receive the rear edges of said members to prevent slipping andobviating movement of the members either toward 'or from each other.

Having thus described the invention, what is claimed as new is 1. Incombination, a bar comprising companion members arranged in parallelrelation and spaced apart and having alined notches in correspondingedges, cultivator-shovels having their shanks seated in said notches andadjustable along the bar, fastenings engaging the shanks of thecultivator-shovels at points opposite the space formed between thecompanion members thereof and passed between the latter, andclamp-plates engaging the edges of the bar members opposite tothetoothed edges and serving to secure the cultivator-shovels to the barin an adjusted position.

"*2. In a cultivator, the combination of a beam comprising similarmembers transversely spaced, a bar angularly disposed with reference tothe beam and comprising spaced members having alined notches incorresponding edges, cultivator -shovels having their shanks seated insaid notches, fastenings passed between the members of the bar andserving to secure the cultivator-shovels thereto in an adjustedposition, means for connecting the beam and bar, the same comprising aclamp-plate spanning the members of the beam and grooved near its endsto receive the edge portions thereof, a bolt passed throughcorresponding openings in the clampplate and in the members of thetoothed bar,

and a Spacing-sleeve mounted upon the bolt and coming between themembers of the bar.

In testimony whereof I afliX my signature in presence of two witnesses.

DE WITT W. STRICKLAND. [L s] Witnesses M. M. HART, HOMER HART.

